|author||Philip Langdale <firstname.lastname@example.org>||2017-02-04 13:51:50 -0800|
|committer||wm4 <wm4@nowhere>||2017-02-06 06:14:39 +0100|
manpage: Reorganise discussion of cuda hwdec to be less confusing
The existing discussion has managed to convince people they should use cuda-copy instead of cuda, which just isn't right.
Diffstat (limited to 'DOCS')
1 files changed, 8 insertions, 12 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index c5fe6e5dd6..3c205b9da5 100644
@@ -669,6 +669,14 @@ Video
forcing it with ``--opengl-backend=x11``, but the vaapi/GLX interop is
said to be slower than ``vaapi-copy``.
+ The ``cuda`` and ``cuda-copy`` modes provides deinterlacing in the decoder
+ which is useful as there is no other deinterlacing mechanism in the opengl
+ output path. To use this deinterlacing you must pass the option:
+ Pass ``weave`` (or leave the option unset) to not attempt any
+ deinterlacing. ``cuda`` should always be preferred unless the ``opengl``
+ vo is not being used or filters are required.
Most video filters will not work with hardware decoding as they are
primarily implemented on the CPU. Some exceptions are ``vdpaupp``,
``vdpaurb`` and ``vavpp``. See `VIDEO FILTERS`_ for more details.
@@ -719,18 +727,6 @@ Video
affect this additionally. This can give incorrect results even with
completely ordinary video sources.
- ``cuda`` is usually safe. Interlaced content can be deinterlaced by
- the decoder, which is useful as there is no other deinterlacing
- mechanism in the opengl output path. To use this deinterlacing you
- must pass the option: ``vd-lavc-o=deint=[weave|bob|adaptive]``. Pass
- ``weave`` to not attempt any deinterlacing.
- 10 and 12bit HEVC is available if the hardware supports it and a
- sufficiently new driver (> 375.xx) is used.
- ``cuda-copy`` has the same behaviour as ``cuda`` - including the ability
- to deinterlace inside the decoder. However, traditional deinterlacing
- filters can be used in this case.
``rpi`` always uses the hardware overlay renderer, even with